Destructuring with default value returns a function

I am destructuring value out of an object like so;

const response = { data: [] }
const { data: { values } = {} } = response

console logging the value of values, its a native function instead of undefined

If I change the response to have an object as the value of the key data, it works as expected

const response = { data: {} }
const { data: { values } = {} } = response

Am as confused as a squirrel in a maze full of mirrors